effect of harmonics in power quality

WHY POWER QUALITY AUDIT IS IMPORTANT ??

-PM ELECTRONICSwww.pmelectronics.in

FELIDAE SYSTEMSPM ELECTRONICS

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YOU MUST TAKE CARE OF YOUR ELECTRICAL SYSTEM –

FOR EFFICIENT AND SMOOTH RUNNING OF THE SYSTEM FOR PROTECTION OF YOUR ELECTRICAL EQUIPMENT FROM DAMAGE FOR INCREASING LIFE OF YOUR ELECTRICAL EQUIPMENT FOR PROTECTION FROM ANY ELECTRICAL HAZARDS IN FUTURE FOR REDUCTION OF YOUR ELECTRICITY BILLS

FELIDAE SYSTEMS


The increased sensitivity of the vast majority of processes (industrial, services and even residential) to Power Quality problems turns the availability of electric power with quality a crucial factor for competitiveness in every activity sector.




Power quality determines the fitness of electrical power to consumer devices. Without the proper power, an electrical device (or load) may malfunction, fail prematurely or not operate at all.




POOR POWER QUALITY CAN LEAD TO-

VOLTAGE FLUCTUATIONS EQUIPMENT DAMAGE TEMPERATURE RISE IN CABLES, MOTORS ETC. LOSS OF ENERGY DEGRADATION OF ELECTRICAL SYSTEM SHORT CIRCUITS AND MANY MORE ISSUES.......




• Variations in the peak or RMS voltage.• RMS voltage exceeding the nominal voltage by 10 to 80% for 0.5

cycle to 1 minute.• RMS voltage getting below the nominal voltage by 10 to 90% for

0.5 cycle to 1 minute.• Random or repetitive variations in the RMS voltage between 90

and 110% of nominal • Abrupt, very brief increases in voltage, called "spikes", "impulses",

or "surges", • Under voltage or Voltage drop occurs when the nominal voltage

drops below 90% for more than 1 minute. • "Overvoltage" occurs when the nominal voltage rises above 110%

for more than 1 minute.• Variations in the frequency.• Variations in the wave shape – usually described

as harmonics.

SOME OF THE POWER QUALITY ISSUES

FELIDAE SYSTEMS PM ELECTRONICS



WHY POWER QUALITY INSPECTION IS IMPORTANT ??

YOU MAY NOT BE AWARE OF ISSUES YOU ARE FACING IN YOUR ELECTRICAL SYSTEM DUE TO POOR POWER QUALITY

DIAGNOSIS OF POWER QUALITY IS IMPORTANT FOR –

• EQUIPMENT SAFETY• OCCUPATIONAL SAFETY• AS WELL AS ENERGY LOSSES




POOR POWER QUALITY NOT ONLY LEADS TO HEAVY ENERGY LOSSES BUT ALSO RESPONSIBLE FOR SHORT CIRCUITS AND OTHER ELECTRICAL HAZARDS.

HENCE AUDIT SHALL COVER POWER QUALITY INSPECTION TO DETERMINE ANY ONGOING ENERGY LOSSES DUE TO POOR POWER QUALITY OR ANY SAFETY CONCERN FOR EQUIPMENT LIFE AS OCCUPATIONAL SAFETY.




CASE STUDY ONGC




• AN ENERGY MONITORING SYSTEM WAS INSTALLED LAST MONTH AT ONGC WHICH RECORDS DAILY ELECTRICAL & ENERGY DATA

• THE DATA IS CAPTURED ONLY FROM ONE LOCATION BUT IS GIVING US VALUABLE INFORMATIONS ON THE BEHAVIOUR OF VOLTAGE AND OTHER PARAMETERS




AS PER THE RECORDED DATA, THE VOLTAGE TREND IS FOUND TO BE ABNORMAL IN NATURE WHICH IS ONE OF THE MAIN REASONS OF POOR POWER QUALITY




THE VOLTAGE IS FOUND TO BE QUITE FLUCTUATING IN NATURE AND AS PER THE FIGURE BELOW, IT HAS ALSO CROSSED THE PERMISSIBLE SHOWING POOR POWER QUALITY.

THE VOLTAGE LEVEL SHOULD BE MAINTAINED WELL WITHIN THE PERMISSIBLE LIMITS AT ALL RUNNING CONDITIONS.

ANY VOLTAGE SPIKE IS UNWANTED AND LEADS TO POOR POWER QUALITY.




NOW THIS WAS ONLY A SAMPLE RESULT SHOWING VOLTAGE TREND CAPTURED AT ONLY ONE LOCATION.

WE DON’T KNOW WHAT TYPE OF POWER QUALITY ISSUES GOING ON AT VARIOUS LOCATIONS WITHIN THE ENTIRE ELECTRICAL DISTRIBUTION SYSTEM AND HOW THEY ARE AFFECTING THE ELECTRICAL SYSTEM

SO THERE IS NEED OF THOROUGH INSPECTION OF THE ELECTRICAL SYSTEM AND THIS IS WHY YOU NEED TO GO FOR POWER QUALITY AUDIT OF YOUR ELECTRICAL DISTRIBUTION SYSTEM




• POWER QUALITY AUDIT WILL HELP YOU DETECT ALL KINDS OF ONGOING POWER QUALITY ISSUES

• IT SHALL HELP YOU UNDERSTAND THE PROBLEMS RELATED TO THOSE ISSUES

• IT SHALL GUIDE YOU IN BEST MAINTENANCE OF YOUR SYSTEM

• IT SHALL SUGGEST YOU HOW TO AVOID ANY FUTURE EQUIPMENT FAILURES ETC..




ONGOING PROBLEMS IN LIFTS AT THE ONGC – NOIDA CAMPUS CAN BE DUE TO POOR POWER QUALITY.

ACTUAL ROOT CAUSE OF IT’S MALFUNCTION CAN’T BE DETECTED UNLESS YOU OPT FOR POWER QUALITY INSPECTION.

IT’S DIFFICULT TO SAY WHAT KIND OF POWER QUALITY ISSUE AFFECTING YOUR LIFTS NOW.

ATLEAST YOU WILL BE ABLE TO SOLVE THE PROBLEM IF THE MALFUNCTION OF YOUR LIFTS IS DUE YO ANY OF THE POWER QUALITY ISSUES.




SO POWER QUALITY AUDIT IS IMPORTANT-

• TO DETECT ANY POWER QUALITY ISSUES• REASONS FOR POWER QUALITY ISSUES• TRACE THE AREA WHICH IS CREATING PROBLEMS• SUGGEST BEST REMEDIES.




OPT FOR POWER QUALITY AUDIT

• PROTECT YOUR ELECTRICAL EQUIPMENT FROM DAMAGE• PROTECT YOUR ELECTRICAL DISTRIBUTION SYSTEM• AVOID ANY ELECTRICAL HAZARDS • SAVE ANY ONGOING ENERGY LOSSES

FELIDAE SYSTEMS


ASK US FOR POWER QUALITY AUDIT

BODY HEALTH HECK UP ELECTRICAL HEALTH CHECK UP

DOCTOR INSPECTS BODY WE INSPECT YOUR ELECTRICAL SYSTEM

USE OF EQUIPMENT TO DETECT PROBLEMS USE OF EQUIPMENT TO DETECT PROBLEMS

DOCTOR DETECT DISEASE IF ANY WE DETECT ISSUES IF ANY

DOCTOR POINT OUT LEVEL OF PROBLEM WE POINT OUT LEVEL OF PQ PROBLEM

DOCTOR TELLS IT'S AFFECT ON YOUR BODY

WE EXPLAIN THE AFFECT ON ELECTRICAL SYSTEM

DOCTOR SUGGESTS CURE WE RECOMMEND BEST SOLUTIONS AS APPLICABLE




POWER QUALITY AUDIT SHALL HELP YOU IN SMOOTH RUNNING OF YOUR SYSTEM AND KEEP YOU SAFE AND SOUND AS WELL HAVE MONETARY GAINS.




WHERE THE STUDY SHALL BE CONDUCTED ??




POWER QUALITY INSPECTION IS DONE AT THE MAIN HT/LT PANEL WHERE THE POWER ENTERS YOUR FACILITY.

IT IS CARRIED ON TO THE VARIOUS ELECTRICAL FEEDERS

ALSO COVERS THE LOAD END

POWER QUALITY INSPECTION

PM ELECTRONICS


ALSO GO FOR HOT SPOT ANALYSIS

PM ELECTRONICS


• IT’S NOT POSSIBLE TO DETECT ANY LOOSE CONNECTIONS OR RUSTING ISSUES INSIDE ELECTRICAL PANEL CABLES, BUS BARS, DISTRIBUTION BOARDS AND OTHER AREAS WITHIN THE ELECTRICAL SYSTEM BY VISUAL INSPECTION

• USE OF HIGHLY EFFICIENT THERMAL CAMERA DONE TO CAPTURE HOT SPOTS.

IMPORTANT FOR ENERGY CONSERVATION AS WELL FOR SAFETY ISSUES.

• AVOID SHORT CIRCUITS• PROTECT YOUR ELECTRICAL EQUIPMENT

FROM DAMAGE• PROTECT YOUR ELECTRICAL SYSTEM• STAY SAFE




CONTACT US

PM ELECTRONICS+91-7210031004sales@pmelectronics.inwww.pmelectronics.in

G-248,2nd FLOOR ,SECTOR 63,NOIDA-201301





effect of harmonics in power quality

Engineering